3,3-Dimethyl-1,2-epoxybutane

4′-Chloro-3,4-dimethoxychalcone

4-(2-Hydroxyethylamino)-6-methoxyquinoline-3-carboxylic acid

4-(3-Bromophenyl)-2-methoxy-5-(3-methyl-5-isoxazolyl)pyrimidine

4-(4-Bromophenyl)-1,2,3-thiadiazole

4-(4-Chlorophenyl)-6-(trifluoromethyl)pyrimidin-2-amine

4-(4-tert-Butylphenyl)-2-mercapto-6-oxo-1,6-dihydropyrimidine-5-carbonitrile

4-(Benzylsulfonyl)piperidine hydrochloride

4-Amino-3-fluorophenylboronic acid pinacol ester

4-Amino-7-chloro-8-methylquinoline

4-Benzoyl-1-methyl-1H-pyrrole-2-carbaldehyde

4-Bromo-2,6-dimethylphenyl acetate

4-Bromo-7-methoxy-2-methylquinoline

4-Chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid

4-Chloro-7-trifluoromethylquinoline-3-carboxylic acid ethyl ester